Home / 13,612,812.40-20,442,838.20-7,235,520.40

Finding the Fourth Proportional to 13,612,812.40, 20,442,838.20 and 7,235,520.40

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Solution

The fourth proportional to 13,612,812.40, 20,442,838.20 and 7,235,520.40 is: 10,865,834.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,612,812.40 : 20,442,838.20 = 7,235,520.40 : x
  2. Step 2: Convert to fraction form
    13,612,812.40/20,442,838.20 = 7,235,520.40/x
  3. Step 3: Cross multiply
    13,612,812.40x = 20,442,838.20 × 7,235,520.40
  4. Step 4: Simplify right side
    13,612,812.40x = 147,914,572,829,999.28
  5. Step 5: Solve for x
    x = 147,914,572,829,999.28/13,612,812.40
  6. Step 6: Final answer
    x = 10,865,834.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.